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A. M..l ROUSB. l ORE GONGBNTRATOR. No. 576,618. Patented Feb. 9, 1897.

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A'. M. ROUSB.` ORE GONGBNTRATOR.

No. 576,618. l Patented Feb. 9,1897.

' A UNITED STATES PATENT OFFICE.

ALBION'M. ROUSE, OF DENVER, COLORADO, ASSIGNOR TO THE MINERS RELIEF ASSOCIATION, OF SAME PLACE.

ORE-CONCENTRATOR.

SPECIFICATION forming part of Letters Patent No. 576,618, dated February 9, 1897. Application filed January 16, 1896-. Serial No. 575,804. (No model.)

To all whom t may concer/L:

Be it known that I, ALBION M. RoUsE, of the city of Denver, county of Arapahoe, State of Colorado, have invented a certain new and useful Improvement in Ore-Concentrators, of which the following is a full, clear, and eXactdescription, reference being had to the accompanying drawings, forming part of this specification.

My invention relates to an improved apparatus for concentrating ore in pulp; and my invention consists in features of novelty hereinafter fully described, and pointed out inthe claims.

Figure I is atop or plan View of my improved machine. Fig. II is a vertical longitudinal section taken upon the line II II, Fig. I. Fig. III is a transverse vertical section taken on line III III, Fig. I. Fig. IV is a detail top view of the pan. Fig. V is an enlarged de-v tail vertical section of the pan, taken on line V V, Fig. I. Fig. VI is a detail View on a small scale, showing the bumper-bar and part of the pan-frame. Fig. VII is a section taken on line VII VII, Fig. VI.

Referring to the drawings, l represents part of a door or support, upon which the machine rests, through the interpostion of cross-timbers 2, upon which are placed side timbers 3, connected at their ends by strips et. Secured to the top of the side pieces 3 are boxes 5, in which is journaled a shaft 6, provided with pulleys 7 and having a cam 8, preferably located about the center of the shaft. Within the upper part of the frame, composed of the side pieces 3 and end pieces et, is a frameconsisting of side pieces 9 and end pieces 10 11. This frame is bolted to cross-pieces 12, that have a ball-bearin g on the upper edges of the side pieces 3 of the outer frame, the balls being indicated at 13 and flttin gin grooves made in the under side of the strips or pieces 12 and in grooves formed in the upper edges of the side pieces 3 or in plates 14, secured to the upper edges of the side pieces 3. The crosspieces 12 are connected by longitudinal strips 15, to which is secured a roller-shaft 16 by journal-boxes 17. The cam 8 is adapted to bear against the roller-shaft 16, and as the cam revolves the frame 9 lO 11 is forced forward in the direction shown bythe arrow,

Fig. I, by virtue of the cam bearing against the roller I6. y

Secured to and carried by the frame 9 10 1.1 is a pan 18, made fast to the side pieces 9 and end pieces 10 11 by means of strips 19 and bolts or screws 20. At the end A of the machine the pan 18 is flat entirely across its frame, but from the corners 'of the frame at this end of the machine the sides of the pan are turned up, forming a V-shaped flat bottom to the pan, from which diverge inclined sides 21, the slope of the sides bein gillustrated in Figs. III and IV.

At the far end of the machine from that indicated by A the pan has an opening 22, which is near the apex of the fiat bottom of the pan, as shown in Fig. IV. This 'opening is controlled by a valve 23, the stem 24 of which is connected to one arm of a bell-crank lever 25, pivoted at 26 to a bracket 27, secured to the end piece 10 of the frame 9 10 11. On the other arm of the bell-crank lever is a ball or weight 28, and back of this end of the arm is aset-screw 29, fitted in the bracket 27 and provided with a jam-nut 30. A short distance forward of this end of the pan is a partitionplate 31, (see Figs. IV and V,) from each end of which a section is removed, providing passages 33, as shown in Figs. III, IV, and V. Between the partition-plate 31 and the end of the pan is formed a trough 34.

Extending forwardly from the partitionplate 31 is a V-shaped plate 35, the base of which is secured to the partition-plate and the bottom of which, at its far end, is secured to the pan. This plate 35 extends from the pan up to the under side of the cross-strip l2 at this end of the machine. Within the plate 35 is a V-shaped deflcctor 37, with its point presented toward the openin g 22, as seen in Fig. IV. From the partition-plate 31 to a point at about the base of the delector 37 the lower edges of the sides of the V-shaped plate 35 are cut away, forming openings 38, as seen 'in Fig. V. The central part of the pan at this end of the machine is preferably supported by being connected to t-he cross-strip 12 by means of bolts 39. (Shown'in Figs. I, II, and IV.)

40 represents a strip or bar supported by the side pieces3, the ends of which pass through IOO brackets 4l, secured to the side pieces 3. The brackets are provided with set-screws 42, that may be set up to adjust the bar 40 forward or backward.

Secured to the under side of the side pieces of the frame E) 11, by means of bolts 43, (see Figs. VI and VIL) is a bumper-bar 43. This bar is adapted to strike against the bar when the frame 9 10 l1, carrying the pan, is drawn back after being forced forward by the cam 8. This bumper-bar is provided at its middle (see Figs. VI and VII) with a strap 44, having an end 44 for impact with the bar 40, and this strap is held tight by a key 45.

46 represents a spring rod or shaft supported in boxes 47, secured to the side pieces rThis rod or shaft is iu the form of a torsionspring, and secured to it is a hook 4S, connected by a link 49 to a hook 50 ou the under side of the bumper-bar 43. The link 49 assumes an inclined position, as shown in Fig. ll, and tends to pull the movable frame 9 10 11, that carries the pan, down upon its ballbearings. On one end of the shaft or rod 46 is an arm 51, the free end of which is provided with a hole to receive a pin that may be inserted in any one of a series of holes 53 made in one of the side pieces 3, (see dotted lines, Fig. 1L) so that the tension of the torsion rod or shaft may be regulated.

55 represents a movable pan or bucket resting on the base l.

At the front end of the machine the pan 1S is provided with a receiving-box having a central compartment 56 and end compartment-s 57. The side walls of the compartment 56 are provided with perforations 58, (see Fig. II,) and the bottoms of the compartments 57 are perforated, as shown in Fig. I. The bottom of the box is elevated a short distance above the pan 1S.

The cam Sis constructed,as shown in Fig. 1I, with a number of offsets 59 in advance of the main offset or point 60 of the cam. lith this form of cam a number of short jars are imparted to the bed to loosen the ore and then a long and severe jar to cause the ore to become separated from the refuse.

The operation is as follows: rlhe ore-bearing pulp is deposited in the compartment 56 of the box located at the front end of the machine, but finds its way out through the perforation 58, and through the perforated bottoms of the compartments 57 onto the pan 18. The pan is arranged to slope downwardly, as shown in Fig. II, this slope being preferably about one'inch in forty. Motion being imparted to the shaft 6, the cam S imparts to the pan 1S a forward movement against the pressure of the spring-rod 46, and each time a shoulder 59 leaves the roller 16 the spring 46 pulls the pan back with a jar, and when the point 60 finally leaves the roller 16 the spring 46 pulls the pan back until the bar 43 strikes the bar 40, giving a severe jar to the pan. This causes the metal to be conveyed down the inclined pan under a constant agitation, which acts to free the heavier precious metal from the waste. As the far end of the machine is reached the waste passes through the openings 33 into the trough 34, from where it is discharged through a pipe 34, while the precious metal passes through the openings 38 in the V-shaped plate 35, where it reaches the valve 23, the detlector 37 causin gthe metal to be projected toward the valve. Each time the pan is drawn back by the spring 46 to bring the bulnper 43 against the bar 40 the valve 23 is automatically opened by virtue of the weight 2S moving the bellcrank lever 25. The amount of movement of the valve is regulated by adjusting the setscrew 29, so that the discharge from the valve is under the control of the operator. As the ore discharges through the valve it falls into the bucket or pan 55, in which it is collected and can be removed at intervals. The throw or distance that the pan moves under thc influence of the spring 46 can be regulated by setting up the bar 40 through means of the set-screws 42.

The action of the cam S and spring 46 on the pan causes vibrations in the wood frameworkin which the pan is supported, and thus the pan is kept in constant movement not only by virtue of the movement imparted to its carrying-frame, but also by virtue of the movement of the apparatus as a whole, and as pulp cannot pack ou aplate or pan under a given measure of vibration the oonsequ ence is that the particles are held in suspensionand stratification results.

I claim as my invention- 1. In an ore-concentrator, the combination of a pan mounted in a movable frame, means for vibrating said pan in the direc-tion of its length, a discharge-valve at one end of the pan, and a V-shaped plate located at the valve end of the pan and having openings 33; said pan having sloping sides providing a fiat bottom that diverges to said valve, and said V- shaped plate extending onto the fiat bottom of the pan, substantially as set forth.

2. In an ore-concentrator, the combination of a base having side pieces, a pan mounted in a movable frame located between the side pieces of the base, cross-pieces secured to the pan-frame, ball-bearings between said crosspieces and the side pieces of the base, a cam for moving said pan in one direction and formed to impart to the pan a number of short jars and then a long and* severe jar, a spring for moving the pan in the other direction, and a valve located at one end of the pan and provided with means for automatically opening and closing it, said pan having sloping sides providing a fiat bottom that diverges toward said valve, substantially as set forth.

3. In an ore-concentrator, the combination of a main frame, a supplemental frame movably mounted on the main frame, a pan carried by the supplemental frame formed with inclined and converging sides at one end, a

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partition provided with openings located in that end of the pan for forming a trough, an opening in the bottom of the pan and a V- shaped deiiector provided with openings, inclosing said opening and means for intermittently moving the supplemental frame in one direction and means for returning the frame to lproducea jarring of the pan; substantially as shown and described.

4. In an ore-concentrator, the combination of a main frame, a supplemental frame movably carried by the main frame, a pan provided with two outlet-openings carried by the supplemental frame, and means for imparting to the supplemental frame a series of short movements and then a long one consisting of a roller carried by the supplemental frame and a cam bearing against the roller and formed with a series of ofsets 59 and a point G0, means for drawing the frame in the opposite direction and means to produce a jarring of the same, substantially as shown and described.

5. In an ore-concentrator, the combination of a main frame, a supplemental frame movably mounted on the main frame, a pan carried by the supplemental frame formed With inclined and converging sides, an opening in the pan, an automatic valve for said opening, a Weighted bell-crank lever for said Valve adapted to be operated as the supplemental frame is vibrated, and suitable means for vibrating the said frame,substantially as shown and described.

ALBION M. ROUSE. In presence. of-

ALLEN M. BROWN, ALBION E. RoUsE. 

